BDScalar.h

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#ifndef BDSCALAR_H
#define BDSCALAR_H

#include <BeamDataUtil/BDProcessor.h>

#include <Util/UtilRunningAverage.h>

class BDScalar : public BDProcessor {
public:
    BDScalar(float max_dev = 5.0, int nspills=10, const char* device_name=0);
    ~BDScalar();

    void SetDevice(const char* device_name);

    // BDProcessor API

    void SetSpill(const RawBeamMonHeaderBlock& rbmhb,
                  const RawBeamMonBlock& rbmb);

    bool BeamChanged();

    // Configure:

    void SetSpillQueueSize(int nspills);

    void SetAllowedSpillDeviation(float sigmas);

    double GetValue() const;

protected:

    // Subclass can implement this
    virtual double GetScalar(const RawBeamMonHeaderBlock& rbmhb,
                             const RawBeamMonBlock& rbmb);


private:

    UtilRunningAverage fPastSpills;
    float fMaxDev;
    bool fBeamChanged;
    const char* fDeviceName;
};


#endif  // BDSCALAR_H

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